Pull-socket.



M. J, FLYNN,

PULL SOCKET.

APPLIUATION FILED JUNE 26,1908.

QQLQQQQ Patent@ May 18, m9.

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MICHAEL J. FLYNN, OF NEW YORK, N. Y., ASSGNOR TO RALlH A.A SCHENBERQVOF NEW YGRK, N. Y.

sie. senese.

Specification of Lettore Tatent;

Patented Mey 18, 1.909.

Application ller June 536, 196e. Serial. No. @$1,543.

To ell whom it moy concern:

Be it known that l, Mio-sinn il. FLYNN, e citizen oi the United States, ond resident of the city of .New York, county of New York; and State of New' York, have inv 'ed certain new and useful improvements in l?ull- Sockets, oi which the 'following is a specifica tion, talren in connection with the eccornjpem nylug drawingfwhich forms a part or the seme.

filiis invention in its simplest form is a rue--l chanicalznovenient 'which l lio-ve shown for purooses oi ilslustration-fadepted to operate an eiectricstvitch in a pull socket, lout it is to heunderstood thst in its broadest. aspect, the

invention is a mechanical movement, and, while ordinarily it may he used as e switch operating mechanism, it is adapted ior uni versai application and is not to he limited to this particular use.

This invention also covers the combinationfor" the mechanical movement and a. pull socl'zet ln the accom anying drawing shoving'sn illustrative emoodiment oi this invention and in which the same reference numerals' rei ier to similar parte in the several ligures,

lFigure 1 is a side elevation oi? my improved puii socket, a *"ortion of it heir orolren i Tay to better iilustrate sonic of the internal mechanism. Fig. 2 is a longitudinal vertical' section through the pull socket. llig.- 3 is e transverse horizontal section on the line 8 3 o' Fig. 2 looking in, the direction ot' the er".

rows, showing the ilexible driving member in position to operete vthe driven member.' For pu oses ot better iliustretlon the entire culi soc et is shown in Fig. 3 se turned or roe Abeing shown in section..

tated suiliciently to show the throat 3ft. Fig. l is e.. transversehorisontal section on line 4-4 ol Fig. 2, looking in the direction of the arrows. Fig: 5 is e bottoni lon view substantially on the line 5 5 of Fig. 2, loolring in the direction of the arrows, the screw 6 is e fragmentary vertical section on the ine 6`-5 of Fig. 4 turned right side up. Fi 7 is e fragmentory vertical section on line Tw? of Fig. i turned right side up. Fig. '8 is a side elevation of a detail. Fig. 9 is a vertical section of a driving member showing o modified form of stop. Fig. 10 is a detail view of the stop shown in Fig. 9. v i

lu the illustrative embodiment of this inventiou shown in the drawing 1 is a pull socket having e' shell 2 which has e lower reduced portion?, Within which is mounted one ot the contacts i in theiorrn oi a screw threaded cylinder seperated from the 'reduced portion 3 by any suitable insulating 6o material, such as fiber 5. flhe upper ortion of the shell 2 is closed hya cap 6, Yt rough which pass the Wires 7 and 8, 'the latter heingfk the-positive and the former the negative.

- Within the shell 2 and separated from it 65 hy any suitable insulating material 9 l mounty insulating blocks i0 and 11, securing them together by any'suitable mechanism, such for instance, asa screyv 12, the head of which l l may oe countersunk' in the insulating block 17o 10 et 13, the other end of the screw-heilig screw threaded and cooperating with female screw threads a nut 1 4 Which is mounted in.

a .recess 15 in the lower insulating block 11th eed ofthe screw 12 is itself topped to '75 torni female screw threads for the reception ot male screw' threads upon e sefcoidary screer i5, which4 may loe used to iiind the inturned flanges 17 of the screw three/ded contact #l to the lower insulating block liv', soy some suitable insulating material 18 prefer-` ably being mounted adjacent to the inturned' :flanges if?, see llig. 2. This screw 12 with its secondary screw its is, as will later be pointed out, one of the contacts fior the lamp or simif. 85 lar consuming device, the current passing through the contact 4, the lamp dynamo 'or similarl consuming device" and hack through the screws 1'3 and i2 to the-Wire 7 in a man` ner to be hereinafter described. Between 9o. the two insulating blocks 10and l1 l mount a driven member, which in this form 'of my invention, is a rotatable `disk '19u on the lower sorteos, of which l preferably formfone y ormo're come 20, three such cams b erng'o `shown in Fig'. 5, see also Figs. 1, 2 ande,

Located between the block 11 and the driven"` member 19 l inount a switch plete 21 made of any suitable conducting materiel and form it with as. many arms 22, 22 as there 100' are cams 20, 20, three being preferably used, though this number may be varied without departing from my invention. This plate is so mounted that itis caused to move with the driven member 19 and is always in `eloc- 105 trical contact 'with the screw 12 upon which:

it turns. The driven member 19 is in. this form of my invention, made of any suitelole",` insulating material, suchf for instance as porcelain or fiber and is preferably provided 110 vmember adapted to engage with the llexible driving member 25.

l have shown l'or pu rses oi' illustration a plato 26 stamped 'out ol' suitable material having Vlingers 2T, 27

which are cupped or bent substantiallT at right angles to the bod;V portion 26; -si\r of suoli lingers being1 ]i relerabl}r used but this number may be increased or liminisl'zed as found convenient. i

l`he larger recess 24 lis given a non-circular contour, being preferably formed square -as shown in dotted lines in Fig. .i for the reeeption ol: a square or non-eireular plate 28 formed with apertures or perforations for the reception of the lingers 2 on the plate 267 see Fig. 'The arrangement is suoli that the looking plate 28 serves to hold the plate 26 to the driven member ll) and prevents any relative rotation between plate'2l and the driven member Il). ltis to be understood ol course,` that it desired, the locking plate 28 may be omitted and any other means may be used to seeure the plate (5 to the driven member 19. The plate 26 and the looking plate 28 are insulated in anyr suitable manner from the screw or center Contact 12, preterably by forming a hollow trunnion .59 on the spring 3l driven member i9 through 'which passes the serew 12, Fig. 2.

The flexible driving member 25 may be formed of any suitable material whiel'i is adapted to engage and disengage the eooperating surfaces carried by the driven member 19. l have shown in the drawingl my flexible driving 'member in the form oli a chain having a plurality of connected spheres or balls 2f), 29 and connected to the insulating bleek l() in any suitable manner for instance by a suitable retraeting means eenneeted to the insulatingl bleek. For purposes of illustration l have shown a eoil spring 3l having one end eonneeted to the pin 3U last to theblot'k l0, and its other end secured in any suitable manner te the flexible driving member 25, sueh for instantie. as by pressing one oi' the spheres or balls 2l? be tween two of the eonvolutions oi the llexible l may also lorm a bearing` tor this .retraetingT means by forming a downwardlyY extendiiilgr llange 32 upon the insulating bleek il), Figs. 2 and. il.

A pull upon the driving member .25 will cause it to assume the position shown in Fig. 3, where one or more ofthe balls are adapted to engage with one or more ol' the upwardlr extending lingeis 27 ol the plate 26, carried by the'driven member lli. Further pull or pressure upon the driving` member 25 will cause it to positively engage apdeooperate with the lingers or other cooperating surl'aees pue ol the arms 21? genees ol the driven memberlll, the movement oll the hiringr member being' limited by a stop ei'igagine' with the mills ol' the recess .-li exleudii'rer rliroue'b the side ol' the bloel: l0. l. have lor piu-poses olI illustration shown this stop formed as an enlarged ball 132 ol' greater ffliametei than the passage B3 through the side ot the bloeli l() which passage registers with 'the throat. 34 ol the shell 2.

Vilhou the. 'ain is removed lrom the driving member 5i, the retrainingr means Ill will cause it to move haelt into the chamber 35 in the disk i0, the incline suilares oll the balls acting aseams to permit disengagement 0l' the driving member with the upwardly turned 'lingers 27 or other eoi'iporatiog surl'aeos carried by the driven member. "llo assist in this operation, l ma)P use another spring J-lt whii'h is pre'l'eralt-l),vr mounted iu 'the eliamber 3.5 and held ou. the piu ill), though it may' be otherwise mounted il' desired. The end ol' the spring prel'erablgvv extends beyond the end oi' the dowi'rwarilly' extending llange 252. 'lliisspringr 36 luiwever, isn'ierely an additional feature, and may be dispensed with without departing' vl'rom my invention as mv mechanical movement will operate sueeossl'ullj; without it. Upon the next pull upon the drivingr men'iber 25 the same will engage with other lingers 27 ol' the )late 26 and give the driven member l?) a lurllier partial rotation, the driven member being again released when pressure is iemovei'l 'l'rom'the drivnic;l member. This continued step by step movement oll the driven memberJSl, may be used l'or any desired purpose. As here illust rated il; is used lo operate the oontaet plate 2l, having arms 22, 22 which. are adapted to be alternately engaged with an electrical routart il?, held to the insulating bleekv ll in any suitable manner as by the standard 38 and screw' 5l. The arms 22 are, as previously noted, mounted adjacent to the shoulders olI the cams 2l which Cams, upon the rotation olI the driven member lll, press downward upon the sprintr :"ontaet il? until the routaet passes the shoulders ol' the partieulzir am when the :spring i'ontatt .")7 will instantly spring back into eoutaet uilll ol' the eoutaet plate 2l making' eleetriral emmer-tion ythrough the screws l2, lli and eoutaet plate 2l willi the stalillard 38, which is iu luru iu electriral Contact with the ywire 7, held to the standard Ill serew Jill. llpou the next downward pull ou the flexible driving' member 25 lh(-` driven member Il), together with the routal't/ plate .20, is given a iarlial rotation sullirieut to move one ol i ie arms 22 away l'f'om the spring' routart Il?, oormiltiug the eoutaet i7 to engage 'with the surlare ol' the insulating driven member it). 'lhis will break the elet'- triral rouuertiou and rut olll the eurrentlrom the lamp, dynamo, or other doviee, to wliirh by anir suitable means as by the binding lll-l) one of t e arms 22 over the spring contact 37, when the' electric connection is restored. This continues indefinitely, every other pull upon the flexible driving member 25 'serving to make, in this form of my invention, an

'electric yconnection inthe pull socket.

The cams 20 may be omitted if desired, but they are preferably used to insure aninstantaneous contact between the arms 22 and the spring Contact 37 to prev-ent sparking. I ma also use a brake or retarding member to yie dingly hold the driven member 19 in any desired position. This member may be formed in any suitable manner., assuming for instance, the sha e of a spring 40, having one endfixed to t e insulating block 11 and its free end yieldingly pressing against the under surface of the' driven member 19.

To readil disconnect the parts and permit driving member 25 to be inserted within the shell 2 I may bevel the edge of the driven member 19 as shown-at 41 Figs. 1 and 2. Instead of using an enlarged ball upon the' flexible member to act as a sto limiting the movement of the' driving mem er, I may, in some cases, merely clamp the member 42 having arms 43, 43 around one of the balls 29 as shown in Figs. 9 and 10 or any other stop m. y be used.

t is of course to be understood that ny invention is not limited'to the flexible driving member shown, for'any suitable flexible member which is adapted to engage and dis engage any coperatmg surfaces carried by the driven member, will v'come Within the terms of my invention.

The cap 6 may be provided with an insu-- lating lining 45 and is detachably secured to the shell 2, and the internal mechanism of the pull socket in any suitable manner as by the screws 46, 46 taking into the radial holes 48, 48 in the insulating block 10.. If desired, I may in some cases place bushings 49, 49 in the holes 48, 48 to co erateiwithtne threads of the screws 46, t rough these may be omitted. y

The Wire 7 is connected to the standard 38 which in turn has one end connected to the insulating block 1() by-mean-s Ufa 'screw 50 and its other end is connected to the insulating block 11 by means of a similar screw 51 which is also used to secure the spring electrical contact 37. The other wire 8 is connected in any suitable manner, as by ,a set screw 53, toa similar standard 52 which is used to assist i-n connecting the two spaced.

insulating blocks 10 and 1], one end of the standard being secured to the insulating block 10 by a .screw 54 and the other end being securedto the insulating block 11 by means of a screw 55 which in turn assists in securing thecontaeft 4 and the block 11 and in this manner forms an electrical connection between the standard 52 and the contact 4 ofthe pull socket. V These two connected insulating blocks 10 'and 11 may be termed the body ortion. of thejinternal mechanism of my u l socket.

`T e lamp or any other consuming device is either directly,o r through a suitable plug, screwed into the contact 4 until its complementary contact engages with the` contact 16 of the pull socket. Current then passes through the wire 8, standard 52, screw 55 and contact .4 to the consuming device returning through screws 16, 12, switch late 21', arm 22, spring Contact 37 and stan( ard 38 to the Wire 7, the currentl being switched off or on in the manner previously described.

It is to be understood of course that other forms of contacts may be used te. cooperate with the consuminof device and that the electrical connection above desbribed may be reversed if desired. 1

IrlavinN thus described this invention in connection with several illustrative embodiments thereof, to the details of Which'I do not desire to be limited, what is claimed as new and what it is desired to secure hy Letters Patent is set forth .in the appended claims. r '4 i.

- 1. In a mechanical movement, a flexible driving member adapted to directlyengage surfaces carried by `the driven member, a driven member having surfaces to cooperate with the flexible driving member, a spring to retract the driving member, and a secondary spring to assist in releasing the engaging surfaces of the driving and driven members when tension is removed from the driving member'.

2. In a pull socket the combination of the insulating body portion.. a rotatable disk havingsurfaces to coperate with a driving member, a flexible drivmgvmember, 'engaging surfaces carried by the drivenmember, a

` spring to assist in the disengagement ot the driving member from the surfaces carried by` thedrivenI member, and a second spring to` retract the flexible driving member.

3. In a mechanical movement, the combi; nation of al flexible drivingj member formed of a plurality of connected alls or spheres, a driven member having fingers to cooperate with balls or spheres', means to retract the iiexible driving member and flexible means to assist in disengaging the balls or s heres from the cooperating surfaces carried y the driven member.

MICHAEL J. FLYN N I/Vitnesses llO 

